Ohio features a humid continental climate (Köppen Dfa/Dfb) throughout most of the state, transitioning slightly to a humid subtropical climate (Cfa) in the extreme southern areas near the Ohio River. The state experiences four distinct seasons, each bringing its own distinct weather patterns.
Summers are generally warm to hot and humid, with average high temperatures ranging from the low 80s to low 90s Fahrenheit (27–34 °C). Winters are cold, with average highs in the 30s (°F) and frequent dips below freezing. Snowfall varies significantly; southern Ohio may receive only 15 inches of snow annually, while the northeastern "Snow Belt" near Cleveland can receive over 100 inches due to intense lake-effect snow off Lake Erie.
Spring and autumn are transitional and often the most pleasant times to visit, boasting mild temperatures and beautiful fall foliage. Natural disasters occasionally impact the state, primarily in the form of severe thunderstorms and tornadoes during the spring and summer months, as well as occasional flooding along the Ohio River and its tributaries.